Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should Junckers' Acoustic Cradle acoustic system has been tested to Document E as suitable for reducing sound impact in residential buildings. It can be used over uneven concrete floors in conjunction with Junckers 14-, 20.5- and 22mm-thick boards.